Contiki 2.6
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00001 /* 00002 * Copyright (c) 2006, Swedish Institute of Computer Science. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the Institute nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * $Id: ext-sensor.c,v 1.2 2010/08/25 19:34:42 nifi Exp $ 00030 * 00031 * ----------------------------------------------------------------- 00032 * 00033 * Author : Adam Dunkels, Joakim Eriksson, Niclas Finne, Marcus Lundén, 00034 * Jesper Karlsson 00035 * Created : 2005-11-01 00036 * Updated : $Date: 2010/08/25 19:34:42 $ 00037 * $Revision: 1.2 $ 00038 */ 00039 00040 00041 #include "contiki.h" 00042 #include "dev/ext-sensor.h" 00043 #include "dev/sky-sensors.h" 00044 00045 /* SREF_0 is AVCC */ 00046 /* SREF_1 is Vref+ */ 00047 /* ADC0 == P6.0/A0 == port "under" logo */ 00048 /* ADC1 == P6.1/A1 == port "over" logo */ 00049 /* ADC2 == P6.2/A2, bottom expansion port */ 00050 /* ADC3 == P6.1/A3, bottom expansion port, End Of (ADC-)Sequence */ 00051 00052 #define INPUT_CHANNEL ((1 << INCH_0) | (1 << INCH_1) | \ 00053 (1 << INCH_2) | (1 << INCH_3)) 00054 #define INPUT_REFERENCE SREF_0 00055 #define EXT_MEM0 ADC12MEM0 00056 #define EXT_MEM1 ADC12MEM1 00057 #define EXT_MEM2 ADC12MEM2 00058 #define EXT_MEM3 ADC12MEM3 00059 00060 const struct sensors_sensor ext_sensor; 00061 /*---------------------------------------------------------------------------*/ 00062 static int 00063 value(int type) 00064 { 00065 /* ADC0 corresponds to the port under the logo, ADC1 to the port 00066 over the logo, ADC2 and ADC3 corresponds to port on the JCreate 00067 bottom expansion port) */ 00068 switch(type) { 00069 case ADC0: 00070 return EXT_MEM0; 00071 case ADC1: 00072 return EXT_MEM1; 00073 case ADC2: 00074 return EXT_MEM2; 00075 case ADC3: 00076 return EXT_MEM3; 00077 } 00078 return 0; 00079 } 00080 /*---------------------------------------------------------------------------*/ 00081 static int 00082 status(int type) 00083 { 00084 return sky_sensors_status(INPUT_CHANNEL, type); 00085 } 00086 /*---------------------------------------------------------------------------*/ 00087 static int 00088 configure(int type, int c) 00089 { 00090 return sky_sensors_configure(INPUT_CHANNEL, INPUT_REFERENCE, type, c); 00091 } 00092 /*---------------------------------------------------------------------------*/ 00093 SENSORS_SENSOR(ext_sensor, "Ext", value, configure, status);